Natural convection with variable fluid properties of couple stress fluid with Cattaneo-Christov model and enthalpy process

The geometry under consideration for this flow problem, namely paraboloid surface is similar to aircraft and car bonnet, bullet shape, front shape of submarine, rockets these types are useful in manufacturing formula F1 cars airplanes. fluid over has several applications space science, industries, mechanical works architecture. aim study explore the Cattaneo-Christov heat mass flux model steady 2D couple stress with variable thermo-physical characteristics near parabolic surface. effects enthalpy activation energy also taken into consideration. stretching layers assumed at body. problem amended by using law conservation momentum, transfer. non-linear governing partial differential equations converted ordinary self-similar form similarity transformation. resulting ODE's numerically solved bvp4c method. conclusion indicates that moves quickly due higher inputs couples parameter buoyancy while viscosity coefficient creates restriction motion. transference analysis temperature concentration enhances impacts thermal conduction diffusivity coefficient. relaxation parameters source decline fluid. transmission rate maximum transfer minimum raising values Dramkholer number. impression all on different fields listed discussion section.